{"id":7601,"date":"2021-11-20T14:07:47","date_gmt":"2021-11-20T07:07:47","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7601"},"modified":"2021-11-20T17:13:34","modified_gmt":"2021-11-20T10:13:34","slug":"vi-sao-thanh-tich-chay-400-m-tiep-suc-lai-cao-hon-khi-chay-cu-ly-100-m","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-thanh-tich-chay-400-m-tiep-suc-lai-cao-hon-khi-chay-cu-ly-100-m\/","title":{"rendered":"V\u00ec sao th\u00e0nh t\u00edch ch\u1ea1y 400 m ti\u1ebfp s\u1ee9c l\u1ea1i cao h\u01a1n khi ch\u1ea1y c\u1ef1 ly 100 m?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Th\u00e1ng 10 n\u0103m 1968, t\u1ea1i Olimpic m\u00f9a h\u00e8 Mexico, nam v\u1eadn \u0111\u1ed9ng vi\u00ean M\u1ef9 Hayenx\u01a1 \u0111\u00e3 ch\u1ea1y 100 m\u00e9t h\u1ebft 9,9\u201d, l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u00e3 ch\u1ea1y 100 m d\u01b0\u1edbi 10\u201d, \u0111\u00e2y l\u00e0 m\u1ed9t m\u1ed1c quan tr\u1ecdng trong l\u1ecbch s\u1eed \u0111i\u1ec1n kinh. C\u0169ng t\u1ea1i th\u1ebf v\u1eadn h\u1ed9i n\u00e0y, \u0111\u1ed9i ch\u1ea1y ti\u1ebfp s\u1ee9c 400 m nam c\u1ee7a M\u1ef9 v\u1edbi th\u00e0nh t\u00edch 38\u201d2, trung b\u00ecnh ch\u1ea1y 100m h\u1ebft 9\u201d6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u r\u00f5 r\u00e0ng l\u00e0 cu\u1ed9c ch\u1ea1y ti\u1ebfp s\u1ee9c 400 m l\u00e0 do b\u1ed1n ng\u01b0\u1eddi kh\u00e1c nhau th\u1ef1c hi\u1ec7n ch\u1ea1y c\u1ef1 ly 100 m k\u1ebf ti\u1ebfp nhau. N\u1ebfu b\u1ed1n v\u1eadn \u0111\u1ed9ng vi\u00ean th\u1ef1c hi\u1ec7n c\u00f9ng v\u1edbi th\u00e0nh t\u00edch c\u1ee7a Hayenx\u01a1, t\u1ee9c th\u00e0nh t\u00edch ch\u1ea1y 100 m h\u1ebft 9,9\u201d th\u00ec b\u1ed1n ng\u01b0\u1eddi n\u00e0y ph\u1ea3i ch\u1ea1y v\u1edbi th\u1eddi gian 39,6\u201d. T\u1ea1i sao v\u1eady? \u0110\u1ec3 gi\u1ea3i \u0111\u00e1p c\u00e2u h\u1ecfi n\u00e0y, ng\u01b0\u1eddi ta ph\u1ea3i nh\u1edd c\u00e1c nh\u00e0 to\u00e1n h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e0o n\u0103m 1973, nh\u00e0 to\u00e1n h\u1ecdc M\u1ef9 \u0111\u00e3x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh to\u00e1n h\u1ecdc cho m\u00f4n ch\u1ea1y t\u1ed1c \u0111\u1ed9 c\u1ef1 ly 100 m. \u0110\u00e2y l\u00e0 \u0111\u01b0\u1eddng bi\u1ec3u di\u1ec5n t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y 100 m trong su\u1ed1t l\u1ed9 tr\u00ecnh thi \u0111\u1ea5u. T\u1eeb \u0111\u01b0\u1eddng bi\u1ec3u di\u1ec5n n\u00e0y, v\u1edbi c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y t\u1ed1c \u0111\u1ed9 c\u1ef1 ly 100 m th\u00ec \u1edf 30 m \u0111\u1ea7u, t\u1ed1c \u0111\u1ed9 c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean t\u0103ng r\u1ea5t nhanh; trong kho\u1ea3ng t\u1eeb 30 m &#8211; 100 m v\u1eadn \u0111\u1ed9ng vi\u00ean duy tr\u00ec ch\u1ea1y v\u1edbi t\u1ed1c \u0111\u1ed9 l\u1edbn nh\u1ea5t, trong kho\u1ea3ng th\u1eddi gian n\u00e0y t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean c\u00f3 th\u1ec3 c\u00f3 thay \u0111\u1ed5i nh\u01b0ng kh\u00f4ng thay \u0111\u1ed5i nhi\u1ec1u l\u1eafm; kho\u1ea3ng b\u1eaft \u0111\u1ea7u 80 m v\u00ec th\u1ec3 l\u1ef1c gi\u1ea3m n\u00ean t\u1ed1c \u0111\u1ed9 c\u1ee7a v\u1eadn \u0111\u1ed9ng vi\u00ean c\u00f3 th\u1ec3 gi\u1ea3m, nh\u01b0ng \u1edf g\u1ea7n \u0111\u00edch t\u1ed1c \u0111\u1ed9 l\u1ea1i m\u1ed9t l\u1ea7n n\u1eefa t\u0103ng l\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u \u0111\u00f3 cho th\u1ea5y v\u1edbi b\u1ea5t k\u00ec v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y 100 m n\u00e0o, t\u1ed1c \u0111\u1ed9 ch\u1ea1y cao nh\u1ea5t kh\u00f4ng th\u1ec3 xu\u1ea5t hi\u1ec7n ngay t\u1eeb l\u00fac m\u1edbi b\u1eaft \u0111\u1ea7u ch\u1ea1y, m\u00e0 ph\u1ea3i v\u00e0o kho\u1ea3ng sau 30 m ch\u1ea1y \u0111\u1ea7u ti\u00ean l\u00e0 mi\u1ec1n c\u1ea7n \u0111\u1ec3 anh ta ho\u00e0n th\u00e0nh vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 ch\u1ea1y cao nh\u1ea5t, \u0111\u00f3 ch\u00ednh l\u00e0 qu\u00e3ng \u0111\u01b0\u1eddng \u0111\u1ec3 v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y ti\u1ebfp s\u1ee9c 4.100 m ch\u1ea1y l\u1ea5y \u0111\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong cu\u1ed9c ch\u1ea1y thi ti\u1ebfp s\u1ee9c 4.100 m, c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean c\u1ea7m g\u1eady ch\u1ea1y \u1edf ch\u1eb7ng 2, 3, 4 \u0111\u00e3c\u00f3 qu\u00e3ng \u0111\u01b0\u1eddng ch\u1ea1y l\u1ea5y \u0111\u00e0, trong \u0111\u00f3 10 m \u0111\u1ea7u thu\u1ea7n \u0111\u1ec3 l\u1ea5y \u0111\u00e0, 20 m sau khu v\u1ef1c chu\u1ea9n b\u1ecb cho vi\u1ec7c ti\u1ebfp s\u1ee9c. V\u00ec v\u1eady ch\u1ec9 c\u1ea7n ph\u00e1t huy t\u1ed1t k\u0129 thu\u1eadt ch\u1ea1y l\u1ea5y \u0111\u00e0 v\u00e0 k\u0129 thu\u1eadt trao g\u1eady ti\u1ebfp s\u1ee9c, nh\u1edd v\u1eady v\u1edbi c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean c\u1ea7m g\u1eady ti\u1ebfp s\u1ee9c t\u1eeb ch\u1eb7ng th\u1ee9 hai tr\u1edf \u0111i, khi v\u00e0o \u0111\u01b0\u1eddng ch\u1ea1y l\u00e0 \u1edf v\u00e0o \u0111\u1ed9 ch\u1ea1y v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh nh\u1ea5t; kh\u00f4ng nh\u01b0 v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y \u1edf ch\u1eb7ng m\u1ed9t nh\u1ea5t thi\u1ebft ph\u1ea3i c\u00f3 ch\u1eb7ng ch\u1ea1y t\u1ed1c \u0111\u1ed9 30 m ban \u0111\u1ea7u. V\u00ec v\u1eady tr\u1eeb v\u1eadn \u0111\u1ed9ng vi\u00ean c\u1ea7m g\u1eady ti\u1ebfp s\u1ee9c ban \u0111\u1ea7u th\u00e0nh t\u00edch kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t v\u1eadn \u0111\u1ed9ng vi\u00ean ch\u1ea1y 100 m t\u1ed1t nh\u1ea5t; c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean c\u1ea7m g\u1eady ti\u1ebfp s\u1ee9c \u1edf c\u00e1c ch\u1eb7ng sau \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t qu\u00e1 th\u00e0nh t\u00edch ch\u1ea1y 100m t\u1ed1t nh\u1ea5t c\u1ee7a ch\u00ednh h\u1ecd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kho\u00e1: T\u1ed1c \u0111\u1ed9 v\u00e0 m\u00f4 h\u00ecnh to\u00e1n h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Th\u00e1ng 10 n\u0103m 1968, t\u1ea1i Olimpic m\u00f9a h\u00e8 Mexico, nam v\u1eadn \u0111\u1ed9ng vi\u00ean M\u1ef9 Hayenx\u01a1 \u0111\u00e3 ch\u1ea1y 100 m\u00e9t h\u1ebft 9,9\u201d, l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u00e3 ch\u1ea1y 100 m d\u01b0\u1edbi 10\u201d, \u0111\u00e2y l\u00e0 m\u1ed9t m\u1ed1c quan tr\u1ecdng trong l\u1ecbch s\u1eed \u0111i\u1ec1n kinh. C\u0169ng t\u1ea1i th\u1ebf v\u1eadn h\u1ed9i n\u00e0y, \u0111\u1ed9i ch\u1ea1y ti\u1ebfp s\u1ee9c 400 m nam c\u1ee7a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,9],"tags":[],"class_list":["post-7601","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7601"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7601\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}